- Improve dirsync performance by syncing on a dentry-set rather than
on a per-directory entry
-----BEGIN PGP SIGNATURE-----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=0fPf
-----END PGP SIGNATURE-----
Merge tag 'exfat-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Improve dirsync performance by syncing on a dentry-set rather than on
a per-directory entry
* tag 'exfat-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: remove duplicate update parent dir
exfat: do not sync parent dir if just update timestamp
exfat: remove unused functions
exfat: convert exfat_find_empty_entry() to use dentry cache
exfat: convert exfat_init_ext_entry() to use dentry cache
exfat: move free cluster out of exfat_init_ext_entry()
exfat: convert exfat_remove_entries() to use dentry cache
exfat: convert exfat_add_entry() to use dentry cache
exfat: add exfat_get_empty_dentry_set() helper
exfat: add __exfat_get_dentry_set() helper
Hi Linus,
Please pull a couple random cleanups for 6.9 plus a step-down
patch from Andy.
Thanks,
Yury
-----BEGIN PGP SIGNATURE-----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=DRcj
-----END PGP SIGNATURE-----
Merge tag 'bitmap-for-6.9' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
"A couple of random cleanups plus a step-down patch from Andy"
* tag 'bitmap-for-6.9' of https://github.com/norov/linux:
bitmap: Step down as a reviewer
lib/find: optimize find_*_bit_wrap
lib/find_bit: Fix the code comments about find_next_bit_wrap
-----BEGIN PGP SIGNATURE-----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=Zyn6
-----END PGP SIGNATURE-----
Merge tag 'v6.9-rc-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server updates from Steve French:
- add support for durable file handles (an important data integrity
feature)
- fixes for potential out of bounds issues
- fix possible null dereference in close
- getattr fixes
- trivial typo fix and minor cleanup
* tag 'v6.9-rc-smb3-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: remove module version
ksmbd: fix potencial out-of-bounds when buffer offset is invalid
ksmbd: fix slab-out-of-bounds in smb_strndup_from_utf16()
ksmbd: Fix spelling mistake "connction" -> "connection"
ksmbd: fix possible null-deref in smb_lazy_parent_lease_break_close
ksmbd: add support for durable handles v1/v2
ksmbd: mark SMB2_SESSION_EXPIRED to session when destroying previous session
ksmbd: retrieve number of blocks using vfs_getattr in set_file_allocation_info
ksmbd: replace generic_fillattr with vfs_getattr
Tracing:
- Update makefiles for latency-collector and RTLA, using tools/build/
makefiles like perf does, inheriting its benefits. For example, having a
proper way to handle library dependencies.
- The timerlat tracer has an interface for any tool to use. rtla timerlat
tool uses this interface dispatching its own threads as workload. But,
rtla timerlat could also be used for any other process. So, add 'rtla
timerlat -U' option, allowing the timerlat tool to measure the latency of
any task using the timerlat tracer interface.
Verification:
- Update makefiles for verification/rv, using tools/build/ makefiles like
perf does, inheriting its benefits. For example, having a proper way to
handle dependencies.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZfr9+RQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qnnEAQDOZhb7vaDWim5yF8Gg5lAemgdC0O3B
nX7Lky5ZxuZNywEAvlInr9pUprqtNKu5zVDruf0jAr/d55EpPJnufKwRlAI=
=LLIw
-----END PGP SIGNATURE-----
Merge tag 'trace-tools-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull trace tool updates from Steven Rostedt:
"Tracing:
- Update makefiles for latency-collector and RTLA, using tools/build/
makefiles like perf does, inheriting its benefits. For example,
having a proper way to handle library dependencies.
- The timerlat tracer has an interface for any tool to use. rtla
timerlat tool uses this interface dispatching its own threads as
workload. But, rtla timerlat could also be used for any other
process. So, add 'rtla timerlat -U' option, allowing the timerlat
tool to measure the latency of any task using the timerlat tracer
interface.
Verification:
- Update makefiles for verification/rv, using tools/build/ makefiles
like perf does, inheriting its benefits. For example, having a
proper way to handle dependencies"
* tag 'trace-tools-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tools/rtla: Add -U/--user-load option to timerlat
tools/verification: Use tools/build makefiles on rv
tools/rtla: Use tools/build makefiles to build rtla
tools/tracing: Use tools/build makefiles on latency-collector
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmX6tp4ACgkQF0NaE2wM
flgzWQf/VV3cQmOGjgegxSyi//kq5jmy6T8trYd4jeIicYFxAW1Xjq9cO7iEFTQZ
N4efTnqo0kku/HW/3wMgoznDEise6z8E/RpbuS9pCBkCj+a4vnFP/4IemDlb58RU
oA0bgClk73b2xbF2x+btYLBmzszikSzGLD9CQkBHDanVV3FhipbrIRUI2qjK+F2L
/OWHQ02n3g7u7xuK3Fn7GMCQ8z8ZKM5le4Tlip4y2VvHmacLJ6tgXl8phodK1HPq
NpHRDUDzZnYVHeP9BaH66Z0eddzA6v74kpKoobk5ybbYEfS3VeBJzXl63C+NW/oG
u9xpWI+sNWbrPDfTtiCVaKu4F6RoKg==
=y1I0
-----END PGP SIGNATURE-----
Merge tag 'docs-6.9-2' of git://git.lwn.net/linux
Pull more documentation updates from Jonathan Corbet:
"A handful of late-arriving documentation fixes and enhancements"
* tag 'docs-6.9-2' of git://git.lwn.net/linux:
docs: verify/bisect: remove a level of indenting
docs: verify/bisect: drop 'v' prefix, EOL aspect, and assorted fixes
docs: verify/bisect: check taint flag
docs: verify/bisect: improve install instructions
docs: handling-regressions.rst: Update regzbot command fixed-by to fix
docs: *-regressions.rst: Add colon to regzbot commands
doc: Fix typo in admin-guide/cifs/introduction.rst
README: Fix spelling
The timerlat tracer provides an interface for any application to wait
for the timerlat's periodic wakeup. Currently, rtla timerlat uses it
to dispatch its user-space workload (-u option).
But as the tracer interface is generic, rtla timerlat can also be used
to monitor any workload that uses it. For example, a user might
place their own workload to wait on the tracer interface, and
monitor the results with rtla timerlat.
Add the -U option to rtla timerlat top and hist. With this option, rtla
timerlat will not dispatch its workload but only setting up the
system, waiting for a user to dispatch its workload.
The sample code in this patch is an example of python application
that loops in the timerlat tracer fd.
To use it, dispatch:
# rtla timerlat -U
In a terminal, then run the python program on another terminal,
specifying the CPU to run it. For example, setting on CPU 1:
#./timerlat_load.py 1
Then rtla timerlat will start printing the statistics of the
./timerlat_load.py app.
An interesting point is that the "Ret user Timer Latency" value
is the overall response time of the load. The sample load does
a memory copy to exemplify that.
The stop tracing options on rtla timerlat works in this setup
as well, including auto analysis.
Link: https://lkml.kernel.org/r/36e6bcf18fe15c7601048fd4c65aeb193c502cc8.1707229706.git.bristot@kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Use tools/build/ makefiles to build rv, inheriting the benefits of
it. For example, having a proper way to handle dependencies.
Link: https://lkml.kernel.org/r/2a38a8f7b8dc65fa790381ec9ab42fb62beb2e25.1710519524.git.bristot@kernel.org
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: John Kacur <jkacur@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Use tools/build/ makefiles to build rtla, inheriting the benefits of
it. For example, having a proper way to handle dependencies.
rtla is built using perf infra-structure when building inside the
kernel tree.
At this point, rtla diverges from perf in two points: Documentation
and tarball generation/build.
At the documentation level, rtla is one step ahead, placing the
documentation at Documentation/tools/rtla/, using the same build
tools as kernel documentation. The idea is to move perf
documentation to the same scheme and then share the same makefiles.
rtla has a tarball target that the (old) RHEL8 uses. The tarball was
kept using a simple standalone makefile for compatibility. The
standalone makefile shares most of the code, e.g., flags, with
regular buildings.
The tarball method was set as deprecated. If necessary, we can make
a rtla tarball like perf, which includes the entire tools/build.
But this would also require changes in the user side (the directory
structure changes, and probably the deps to build the package).
Inspired on perf and objtool.
Link: https://lkml.kernel.org/r/57563abf2715d22515c0c54a87cff3849eca5d52.1710519524.git.bristot@kernel.org
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: John Kacur <jkacur@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Use tools/build/ makefiles to build latency-collector, inheriting
the benefits of it. For example: Before this patch, a missing
tracefs/traceevents headers will result in fail like this:
~/linux/tools/tracing/latency $ make
cc -Wall -Wextra -g -O2 -o latency-collector latency-collector.c -lpthread
latency-collector.c:26:10: fatal error: tracefs.h: No such file or directory
26 | #include <tracefs.h>
| ^~~~~~~~~~~
compilation terminated.
make: *** [Makefile:14: latency-collector] Error 1
Which is not that helpful. After this change it reports:
~/linux/tools/tracing/latency# make
Auto-detecting system features:
... libtraceevent: [ OFF ]
... libtracefs: [ OFF ]
libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel
libtracefs is missing. Please install libtracefs-dev/libtracefs-devel
Makefile.config:29: *** Please, check the errors above.. Stop.
This type of output is common across other tools in tools/ like perf
and objtool.
Link: https://lkml.kernel.org/r/872420b0880b11304e4ba144a0086c6478c5b469.1710519524.git.bristot@kernel.org
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: John Kacur <jkacur@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Assorted bugfixes.
Most are fixes for simple assertion pops; the most significant fix is
for a deadlock in recovery when we have to rewrite large numbers of
btree nodes to fix errors. This was incorrectly running out of the same
workqueue as the core interior btree update path - we now give it its
own single threaded workqueue.
This was visible to users as "bch2_btree_update_start(): error:
BCH_ERR_journal_reclaim_would_deadlock" - and then recovery hanging.
-----BEGIN PGP SIGNATURE-----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=J/hu
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-03-19' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Assorted bugfixes.
Most are fixes for simple assertion pops; the most significant fix is
for a deadlock in recovery when we have to rewrite large numbers of
btree nodes to fix errors. This was incorrectly running out of the
same workqueue as the core interior btree update path - we now give it
its own single threaded workqueue.
This was visible to users as "bch2_btree_update_start(): error:
BCH_ERR_journal_reclaim_would_deadlock" - and then recovery hanging"
* tag 'bcachefs-2024-03-19' of https://evilpiepirate.org/git/bcachefs:
bcachefs: Fix lost wakeup on journal shutdown
bcachefs; Fix deadlock in bch2_btree_update_start()
bcachefs: ratelimit errors from async_btree_node_rewrite
bcachefs: Run check_topology() first
bcachefs: Improve bch2_fatal_error()
bcachefs: Fix lost transaction restart error
bcachefs: Don't corrupt journal keys gap buffer when dropping alloc info
bcachefs: fix for building in userspace
bcachefs: bch2_snapshot_is_ancestor() now safe to call in early recovery
bcachefs: Fix nested transaction restart handling in bch2_bucket_gens_init()
bcachefs: Improve sysfs internal/btree_updates
bcachefs: Split out btree_node_rewrite_worker
bcachefs: Fix locking in bch2_alloc_write_key()
bcachefs: Avoid extent entry type assertions in .invalid()
bcachefs: Fix spurious -BCH_ERR_transaction_restart_nested
bcachefs: Fix check_key_has_snapshot() call
bcachefs: Change "accounting overran journal reservation" to a warning
These are changes that for some reason ended up not making it into the
first four branches but that should still make it into 6.9:
- A rework of the omap clock support that touches both drivers and
device tree files
- The reset controller branch changes that had a dependency on late
bugfixes. Merging them here avoids a backmerge of 6.8-rc5 into the
drivers branch
- The RISC-V/starfive, RISC-V/microchip and ARM/Broadcom devicetree
changes that got delayed and needed some extra time in linux-next
for wider testing.
-----BEGIN PGP SIGNATURE-----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=IzoE
-----END PGP SIGNATURE-----
Merge tag 'soc-late-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM SoC updates from Arnd Bergmann:
"These are changes that for some reason ended up not making it into the
first four branches but that should still make it into 6.9:
- A rework of the omap clock support that touches both drivers and
device tree files
- The reset controller branch changes that had a dependency on late
bugfixes. Merging them here avoids a backmerge of 6.8-rc5 into the
drivers branch
- The RISC-V/starfive, RISC-V/microchip and ARM/Broadcom devicetree
changes that got delayed and needed some extra time in linux-next
for wider testing"
* tag 'soc-late-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (31 commits)
soc: fsl: dpio: fix kcalloc() argument order
bus: ts-nbus: Improve error reporting
bus: ts-nbus: Convert to atomic pwm API
riscv: dts: starfive: jh7110: Add camera subsystem nodes
ARM: bcm: stop selecing CONFIG_TICK_ONESHOT
ARM: dts: omap3: Update clksel clocks to use reg instead of ti,bit-shift
ARM: dts: am3: Update clksel clocks to use reg instead of ti,bit-shift
clk: ti: Improve clksel clock bit parsing for reg property
clk: ti: Handle possible address in the node name
dt-bindings: pwm: opencores: Add compatible for StarFive JH8100
dt-bindings: riscv: cpus: reg matches hart ID
reset: Instantiate reset GPIO controller for shared reset-gpios
reset: gpio: Add GPIO-based reset controller
cpufreq: do not open-code of_phandle_args_equal()
of: Add of_phandle_args_equal() helper
reset: simple: add support for Sophgo SG2042
dt-bindings: reset: sophgo: support SG2042
riscv: dts: microchip: add specific compatible for mpfs pdma
riscv: dts: microchip: add missing CAN bus clocks
ARM: brcmstb: Add debug UART entry for 74165
...
- Various virtual vs physical address usage fixes
- Add new bitwise types and helper functions and use them in s390 specific
drivers and code to make it easier to find virtual vs physical address
usage bugs. Right now virtual and physical addresses are identical for
s390, except for module, vmalloc, and similar areas. This will be
changed, hopefully with the next merge window, so that e.g. the kernel
image and modules will be located close to each other, allowing for
direct branches and also for some other simplifications.
As a prerequisite this requires to fix all misuses of virtual and
physical addresses. As it turned out people are so used to the concept
that virtual and physical addresses are the same, that new bugs got added
to code which was already fixed. In order to avoid that even more code
gets merged which adds such bugs add and use new bitwise types, so that
sparse can be used to find such usage bugs.
Most likely the new types can go away again after some time
- Provide a simple ARCH_HAS_DEBUG_VIRTUAL implementation
- Fix kprobe branch handling: if an out-of-line single stepped relative
branch instruction has a target address within a certain address area in
the entry code, the program check handler may incorrectly execute cleanup
code as if KVM code was executed, leading to crashes
- Fix reference counting of zcrypt card objects
- Various other small fixes and cleanups
-----BEGIN PGP SIGNATURE-----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=Vh2x
-----END PGP SIGNATURE-----
Merge tag 's390-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
- Various virtual vs physical address usage fixes
- Add new bitwise types and helper functions and use them in s390
specific drivers and code to make it easier to find virtual vs
physical address usage bugs.
Right now virtual and physical addresses are identical for s390,
except for module, vmalloc, and similar areas. This will be changed,
hopefully with the next merge window, so that e.g. the kernel image
and modules will be located close to each other, allowing for direct
branches and also for some other simplifications.
As a prerequisite this requires to fix all misuses of virtual and
physical addresses. As it turned out people are so used to the
concept that virtual and physical addresses are the same, that new
bugs got added to code which was already fixed. In order to avoid
that even more code gets merged which adds such bugs add and use new
bitwise types, so that sparse can be used to find such usage bugs.
Most likely the new types can go away again after some time
- Provide a simple ARCH_HAS_DEBUG_VIRTUAL implementation
- Fix kprobe branch handling: if an out-of-line single stepped relative
branch instruction has a target address within a certain address area
in the entry code, the program check handler may incorrectly execute
cleanup code as if KVM code was executed, leading to crashes
- Fix reference counting of zcrypt card objects
- Various other small fixes and cleanups
* tag 's390-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (41 commits)
s390/entry: compare gmap asce to determine guest/host fault
s390/entry: remove OUTSIDE macro
s390/entry: add CIF_SIE flag and remove sie64a() address check
s390/cio: use while (i--) pattern to clean up
s390/raw3270: make class3270 constant
s390/raw3270: improve raw3270_init() readability
s390/tape: make tape_class constant
s390/vmlogrdr: make vmlogrdr_class constant
s390/vmur: make vmur_class constant
s390/zcrypt: make zcrypt_class constant
s390/mm: provide simple ARCH_HAS_DEBUG_VIRTUAL support
s390/vfio_ccw_cp: use new address translation helpers
s390/iucv: use new address translation helpers
s390/ctcm: use new address translation helpers
s390/lcs: use new address translation helpers
s390/qeth: use new address translation helpers
s390/zfcp: use new address translation helpers
s390/tape: fix virtual vs physical address confusion
s390/3270: use new address translation helpers
s390/3215: use new address translation helpers
...
As __assign_str() no longer uses its "src" parameter, there's a check to
make sure nothing depends on it being different than what was passed to
__string(). It originally just compared the pointer passed to __string()
with the pointer passed into __assign_str() via the "src" parameter. But
there's a couple of outliers that just pass in a quoted string constant,
where comparing the pointers is UB to the compiler, as the compiler is
free to create multiple copies of the same string constant.
Instead, just use strcmp(). It may slow down the trace event, but this
will eventually be removed.
Also, fix the issue of passing NULL to strcmp() by adding a WARN_ON() to
make sure that both "src" and the pointer saved in __string() are either
both NULL or have content, and then checking if "src" is not NULL before
performing the strcmp().
Link: https://lore.kernel.org/all/CAHk-=wjxX16kWd=uxG5wzqt=aXoYDf1BgWOKk+qVmAO0zh7sjA@mail.gmail.com/
Fixes: b1afefa62c ("tracing: Use strcmp() in __assign_str() WARN_ON() check")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Modify the Energy Model code to bail out and complain if the unit of
power is not uW to prevent errors due to unit mismatches (Lukasz Luba).
- Make the intel_rapl platform driver use a remove callback returning
void (Uwe Kleine-König).
- Fix typo in the suspend and interrupts document (Saravana Kannan).
- Make per-policy boost flags actually take effect on platforms using
cpufreq_boost_set_sw() (Sibi Sankar).
- Enable boost support in the SCMI cpufreq driver (Sibi Sankar).
- Make the DT cpufreq driver use zalloc_cpumask_var() for allocating
cpumasks to avoid using unitinialized memory (Marek Szyprowski).
-----BEGIN PGP SIGNATURE-----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=dlQ/
-----END PGP SIGNATURE-----
Merge tag 'pm-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These update the Energy Model to make it prevent errors due to power
unit mismatches, fix a typo in power management documentation, convert
one driver to using a platform remove callback returning void, address
two cpufreq issues (one in the core and one in the DT driver), and
enable boost support in the SCMI cpufreq driver.
Specifics:
- Modify the Energy Model code to bail out and complain if the unit
of power is not uW to prevent errors due to unit mismatches (Lukasz
Luba)
- Make the intel_rapl platform driver use a remove callback returning
void (Uwe Kleine-König)
- Fix typo in the suspend and interrupts document (Saravana Kannan)
- Make per-policy boost flags actually take effect on platforms using
cpufreq_boost_set_sw() (Sibi Sankar)
- Enable boost support in the SCMI cpufreq driver (Sibi Sankar)
- Make the DT cpufreq driver use zalloc_cpumask_var() for allocating
cpumasks to avoid using unitinialized memory (Marek Szyprowski)"
* tag 'pm-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: scmi: Enable boost support
firmware: arm_scmi: Add support for marking certain frequencies as turbo
cpufreq: dt: always allocate zeroed cpumask
cpufreq: Fix per-policy boost behavior on SoCs using cpufreq_boost_set_sw()
Documentation: power: Fix typo in suspend and interrupts doc
PM: EM: Force device drivers to provide power in uW
powercap: intel_rapl: Convert to platform remove callback returning void
- Add markup to generate links from footnotes in the ACPI enumeration
document (Chris Packham).
- Update the handle_eject_request() kerneldoc comment to document the
arguments of the function and improve kerneldoc comments for ACPI
suspend and hibernation functions (Yang Li).
-----BEGIN PGP SIGNATURE-----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=nafx
-----END PGP SIGNATURE-----
Merge tag 'acpi-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These update ACPI documentation and kerneldoc comments.
Specifics:
- Add markup to generate links from footnotes in the ACPI enumeration
document (Chris Packham)
- Update the handle_eject_request() kerneldoc comment to document the
arguments of the function and improve kerneldoc comments for ACPI
suspend and hibernation functions (Yang Li)"
* tag 'acpi-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Improve kerneldoc comments for suspend and hibernation functions
ACPI: docs: enumeration: Make footnotes links
ACPI: Document handle_eject_request() arguments
- Fix memory leak in the error path at probe time in the Mediatek LVTS
driver (Christophe Jaillet).
- Fix control buffer enablement regression on Meditek MT7896 (Frank
Wunderlich).
- Drop spaces before TABs in different places: thermal-of, ST drivers
and Makefile (Geert Uytterhoeven).
- Adjust DT binding for NXP as fsl,tmu-range min/maxItems can vary
among several SoC versions (Fabio Estevam).
- Add support for the H616 THS controller on Sun8i platforms (Martin
Botka).
- Don't fail probe due to zone registration failure because there is
no trip points defined in the DT (Mark Brown).
- Support variable TMU array size for new platforms (Peng Fan).
- Adjust the DT binding for thermal-of and make the polling time not
required and assume it is zero when not found in the DT (Konrad
Dybcio).
- Add r8a779h0 support in both the DT and the rcar_gen3 driver (Geert
Uytterhoeven).
-----BEGIN PGP SIGNATURE-----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=jtjA
-----END PGP SIGNATURE-----
Merge tag 'thermal-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These update thermal drivers for ARM platforms by adding new hardware
support (r8a779h0, H616 THS), addressing issues (Mediatek LVTS,
Mediatek MT7896, thermal-of) and cleaning up code.
Specifics:
- Fix memory leak in the error path at probe time in the Mediatek
LVTS driver (Christophe Jaillet)
- Fix control buffer enablement regression on Meditek MT7896 (Frank
Wunderlich)
- Drop spaces before TABs in different places: thermal-of, ST drivers
and Makefile (Geert Uytterhoeven)
- Adjust DT binding for NXP as fsl,tmu-range min/maxItems can vary
among several SoC versions (Fabio Estevam)
- Add support for the H616 THS controller on Sun8i platforms (Martin
Botka)
- Don't fail probe due to zone registration failure because there is
no trip points defined in the DT (Mark Brown)
- Support variable TMU array size for new platforms (Peng Fan)
- Adjust the DT binding for thermal-of and make the polling time not
required and assume it is zero when not found in the DT (Konrad
Dybcio)
- Add r8a779h0 support in both the DT and the rcar_gen3 driver (Geert
Uytterhoeven)"
* tag 'thermal-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/drivers/rcar_gen3: Add support for R-Car V4M
dt-bindings: thermal: rcar-gen3-thermal: Add r8a779h0 support
thermal/of: Assume polling-delay(-passive) 0 when absent
dt-bindings: thermal-zones: Don't require polling-delay(-passive)
thermal/drivers/qoriq: Fix getting tmu range
thermal/drivers/sun8i: Don't fail probe due to zone registration failure
thermal/drivers/sun8i: Add support for H616 THS controller
thermal/drivers/sun8i: Add SRAM register access code
thermal/drivers/sun8i: Extend H6 calibration to support 4 sensors
thermal/drivers/sun8i: Explain unknown H6 register value
dt-bindings: thermal: sun8i: Add H616 THS controller
soc: sunxi: sram: export register 0 for THS on H616
dt-bindings: thermal: qoriq-thermal: Adjust fsl,tmu-range min/maxItems
thermal: Drop spaces before TABs
thermal/drivers/mediatek: Fix control buffer enablement on MT7896
thermal/drivers/mediatek/lvts_thermal: Fix a memory leak in an error handling path
- A single fix for ASMedia HBAs.
These HBAs do not indicate that they support SATA Port Multipliers
CAP.SPM (Supports Port Multiplier) is not set.
Likewise, they do not allow you to probe the devices behind an
attached PMP, as defined according to the SATA-IO PMP specification.
Instead, they have decided to implement their own version of PMP,
and because of this, plugging in a PMP actually works, even if the
HBA claims that it does not support PMP.
Revert a recent quirk for these HBAs, as that breaks ASMedia's own
implementation of PMP.
Unfortunately, this will once again give some users of these HBAs
significantly increased boot time. However, a longer boot time for
some, is the lesser evil compared to some other users not being able
to detect their drives at all.
-----BEGIN PGP SIGNATURE-----
iIgEABYKADAWIQRN+ES/c4tHlMch3DzJZDGjmcZNcgUCZfl1DxIcY2Fzc2VsQGtl
cm5lbC5vcmcACgkQyWQxo5nGTXLbfgD/YSHXSMFTch4waFnTVqbI73s8YY7MAf3N
Udis3pXUnL4A/24OxmRaWvE3esgura1puHbMUxgQuFSoxqiF+W47iGcJ
=JrQQ
-----END PGP SIGNATURE-----
Merge tag 'ata-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
"A single fix for ASMedia HBAs.
These HBAs do not indicate that they support SATA Port Multipliers
CAP.SPM (Supports Port Multiplier) is not set.
Likewise, they do not allow you to probe the devices behind an
attached PMP, as defined according to the SATA-IO PMP specification.
Instead, they have decided to implement their own version of PMP,
and because of this, plugging in a PMP actually works, even if the
HBA claims that it does not support PMP.
Revert a recent quirk for these HBAs, as that breaks ASMedia's own
implementation of PMP.
Unfortunately, this will once again give some users of these HBAs
significantly increased boot time. However, a longer boot time for
some, is the lesser evil compared to some other users not being able
to detect their drives at all"
* tag 'ata-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ahci: asm1064: asm1166: don't limit reported ports
Per vq sizes in vdpa.
Info query for block devices support in vdpa.
DMA sync callbacks in vduse.
Fixes, cleanups.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmX5PdQPHG1zdEByZWRo
YXQuY29tAAoJECgfDbjSjVRphP0H/iOUdjemA73k0+E1tX0fIrvTlgJcX4fT/nGn
bgFmV/52zBnTxEXse5sMoTPbpzU8omx88vuVzd9f1X6Uv1MpG8cpHIA0HDKbIxZo
vItLeSv5IacA1KBXfxXvf9069aCnEEdurvE+uAO+x8ngbG4FH3i63Yp0S3nMXYMr
Bl6V11pyusnLpW5HO0LAlETJRxz/3K4Z248LtTx19zzlIfmz+tKmUXozrocmD6Q9
Q1LAWCPKksUXj7t9zc2M92ZqUdSX8JQJpolWZi76MHlrh69YkAJ3gijtNIJv5tJB
Z17zhLUkhdy4b/6rdGlUK/T7bocYLU4fbRaM5xlsDhTWe2z3R1Q=
=Gde9
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
- Per vq sizes in vdpa
- Info query for block devices support in vdpa
- DMA sync callbacks in vduse
- Fixes, cleanups
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (35 commits)
virtio_net: rename free_old_xmit_skbs to free_old_xmit
virtio_net: unify the code for recycling the xmit ptr
virtio-net: add cond_resched() to the command waiting loop
virtio-net: convert rx mode setting to use workqueue
virtio: packed: fix unmap leak for indirect desc table
vDPA: report virtio-blk flush info to user space
vDPA: report virtio-block read-only info to user space
vDPA: report virtio-block write zeroes configuration to user space
vDPA: report virtio-block discarding configuration to user space
vDPA: report virtio-block topology info to user space
vDPA: report virtio-block MQ info to user space
vDPA: report virtio-block max segments in a request to user space
vDPA: report virtio-block block-size to user space
vDPA: report virtio-block max segment size to user space
vDPA: report virtio-block capacity to user space
virtio: make virtio_bus const
vdpa: make vdpa_bus const
vDPA/ifcvf: implement vdpa_config_ops.get_vq_num_min
vDPA/ifcvf: get_max_vq_size to return max size
virtio_vdpa: create vqs with the actual size
...
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCZfk4/AAKCRCAXGG7T9hj
vpBgAP9BtxbGtHlFEncQSscfktbcFgMQ6EiVwa7o9HEOuDimBwEAx1kqej0meNzE
BRRvDHIHhNQb2aQHz8Xu/3DdQ4i2YA0=
=6BT4
-----END PGP SIGNATURE-----
Merge tag 'for-linus-6.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- Xen event channel handling fix for a regression with a rare kernel
config and some added hardening
- better support of running Xen dom0 in PVH mode
- a cleanup for the xen grant-dma-iommu driver
* tag 'for-linus-6.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: increment refcnt only if event channel is refcounted
xen/evtchn: avoid WARN() when unbinding an event channel
x86/xen: attempt to inflate the memory balloon on PVH
xen/grant-dma-iommu: Convert to platform remove callback returning void
Merge additional updates related to the Energy Model, power capping
and system-wide power management for 6.9-rc1:
- Modify the Energy Model code to bail out and complain if the unit of
power is not uW to prevent errors due to unit mismatches (Lukasz
Luba).
- Make the intel_rapl platform driver use a remove callback returning
void (Uwe Kleine-König).
- Fix typo in the suspend and interrupts document (Saravana Kannan).
* pm-em:
PM: EM: Force device drivers to provide power in uW
* pm-powercap:
powercap: intel_rapl: Convert to platform remove callback returning void
* pm-sleep:
Documentation: power: Fix typo in suspend and interrupts doc
Merge an ACPI documentation update for 6.9-rc1 which adds markup to
generate links from footnotes in the enumeration document.
* acpi-docs:
ACPI: docs: enumeration: Make footnotes links
For renaming, the directory only needs to be updated once if it
is in the same directory.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
When sync or dir_sync is enabled, there is no need to sync the
parent directory's inode if only for updating its timestamp.
1. If an unexpected power failure occurs, the timestamp of the
parent directory is not updated to the storage, which has no
impact on the user.
2. The number of writes will be greatly reduced, which can not
only improve performance, but also prolong device life.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
exfat_count_ext_entries() is no longer called, remove it.
exfat_update_dir_chksum() is no longer called, remove it and
rename exfat_update_dir_chksum_with_entry_set() to it.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Before this conversion, each dentry traversed needs to be read
from the storage device or page cache. There are at least 16
dentries in a sector. This will result in frequent page cache
searches.
After this conversion, if all directory entries in a sector are
used, the sector only needs to be read once.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Before this conversion, in exfat_init_ext_entry(), to init
the dentries in a dentry set, the sync times is equals the
dentry number if 'dirsync' or 'sync' is enabled.
That affects not only performance but also device life.
After this conversion, only needs to be synchronized once if
'dirsync' or 'sync' is enabled.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
exfat_init_ext_entry() is an init function, it's a bit strange
to free cluster in it. And the argument 'inode' will be removed
from exfat_init_ext_entry(). So this commit changes to free the
cluster in exfat_remove_entries().
Code refinement, no functional changes.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Before this conversion, in exfat_remove_entries(), to mark the
dentries in a dentry set as deleted, the sync times is equals
the dentry numbers if 'dirsync' or 'sync' is enabled.
That affects not only performance but also device life.
After this conversion, only needs to be synchronized once if
'dirsync' or 'sync' is enabled.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
After this conversion, if "dirsync" or "sync" is enabled, the
number of synchronized dentries in exfat_add_entry() will change
from 2 to 1.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This helper is used to lookup empty dentry set. If there are
no enough empty dentries at the input location, this helper will
return the number of dentries that need to be skipped for the
next lookup.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Since exfat_get_dentry_set() invokes the validate functions of
exfat_validate_entry(), it only supports getting a directory
entry set of an existing file, doesn't support getting an empty
entry set.
To remove the limitation, add this helper.
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Previously, patches have been added to limit the reported count of SATA
ports for asm1064 and asm1166 SATA controllers, as those controllers do
report more ports than physically having.
While it is allowed to report more ports than physically having in CAP.NP,
it is not allowed to report more ports than physically having in the PI
(Ports Implemented) register, which is what these HBAs do.
(This is a AHCI spec violation.)
Unfortunately, it seems that the PMP implementation in these ASMedia HBAs
is also violating the AHCI and SATA-IO PMP specification.
What these HBAs do is that they do not report that they support PMP
(CAP.SPM (Supports Port Multiplier) is not set).
Instead, they have decided to add extra "virtual" ports in the PI register
that is used if a port multiplier is connected to any of the physical
ports of the HBA.
Enumerating the devices behind the PMP as specified in the AHCI and
SATA-IO specifications, by using PMP READ and PMP WRITE commands to the
physical ports of the HBA is not possible, you have to use the "virtual"
ports.
This is of course bad, because this gives us no way to detect the device
and vendor ID of the PMP actually connected to the HBA, which means that
we can not apply the proper PMP quirks for the PMP that is connected to
the HBA.
Limiting the port map will thus stop these controllers from working with
SATA Port Multipliers.
This patch reverts both patches for asm1064 and asm1166, so old behavior
is restored and SATA PMP will work again, but it will also reintroduce the
(minutes long) extra boot time for the ASMedia controllers that do not
have a PMP connected (either on the PCIe card itself, or an external PMP).
However, a longer boot time for some, is the lesser evil compared to some
other users not being able to detect their drives at all.
Fixes: 0077a504e1 ("ahci: asm1166: correct count of reported ports")
Fixes: 9815e39617 ("ahci: asm1064: correct count of reported ports")
Cc: stable@vger.kernel.org
Reported-by: Matt <cryptearth@googlemail.com>
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
[cassel: rewrote commit message]
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Since free_old_xmit_skbs not only deals with skb, but also xdp frame and
subsequent added xsk, so change the name of this function to
free_old_xmit.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20240229072044.77388-19-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
There are two completely similar and independent implementations. This
is inconvenient for the subsequent addition of new types. So extract a
function from this piece of code and call this function uniformly to
recover old xmit ptr.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20240229072044.77388-18-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Adding cond_resched() to the command waiting loop for a better
co-operation with the scheduler. This allows to give CPU a breath to
run other task(workqueue) instead of busy looping when preemption is
not allowed on a device whose CVQ might be slow.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230720083839.481487-3-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
This patch convert rx mode setting to be done in a workqueue, this is
a must for allow to sleep when waiting for the cvq command to
response since current code is executed under addr spin lock.
Note that we need to disable and flush the workqueue during freeze,
this means the rx mode setting is lost after resuming. This is not the
bug of this patch as we never try to restore rx mode setting during
resume.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230720083839.481487-2-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
When use_dma_api and premapped are true, then the do_unmap is false.
Because the do_unmap is false, vring_unmap_extra_packed is not called by
detach_buf_packed.
if (unlikely(vq->do_unmap)) {
curr = id;
for (i = 0; i < state->num; i++) {
vring_unmap_extra_packed(vq,
&vq->packed.desc_extra[curr]);
curr = vq->packed.desc_extra[curr].next;
}
}
So the indirect desc table is not unmapped. This causes the unmap leak.
So here, we check vq->use_dma_api instead. Synchronously, dma info is
updated based on use_dma_api judgment
This bug does not occur, because no driver use the premapped with
indirect.
Fixes: b319940f83 ("virtio_ring: skip unmap for premapped")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20240223071833.26095-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit reports whether a virtio-blk device
support cache flush command to user space
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-11-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit report read-only information of
virtio-blk devices to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-10-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commits reports write zeroes configuration of
virtio-block devices to user space, includes:
1)maximum write zeroes sectors size
2)maximum write zeroes segment number
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-9-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit reports virtio-blk discarding configuration
to user space,includes:
1) the maximum discard sectors
2) maximum number of discard segments for the block driver to use
3) the alignment for splitting a discarding request
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-8-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit allows vDPA reporting topology information of
virtio-blk devices to user space, includes:
1) the number of logical blocks per physical block
2) offset of first aligned logical block
3) suggested minimum I/O size in blocks
4) optimal (suggested maximum) I/O size in blocks
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-7-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commits allows vDPA reporting virtio-block multi-queue
configuration to user sapce.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-6-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit allows vDPA reporting the maximum number of
segments in a request of virtio-block devices to
user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-5-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit allows reporting the block size of a
virtio-block device to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit allows reporting the max size of any
single segment of virtio-block devices to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-3-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit allows userspace to query capacity of
a virtio-block device.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-2-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Now that the driver core can properly handle constant struct bus_type,
move the virtio_bus variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Message-Id: <20240204-bus_cleanup-virtio-v1-1-3bcb2212aaa0@marliere.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Now that the driver core can properly handle constant struct bus_type,
move the vdpa_bus variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Message-Id: <20240204-bus_cleanup-vdpa-v1-1-1745eccb0a5c@marliere.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
IFCVF HW supports operation with vq size less than the max size,
as the spec required.
This commit implements vdpa_config_ops.get_vq_num_min to report
the minimal size of the virtqueues, which gives vDPA framework
a chance to reduce the vring size.
We need at least one descriptor to be functional, but it is better
no less than 64 to meet ceratin performance requirements.
Actually the framework would allocate at least a PAGE for the vq.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-11-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
